Pillow block



Nav. 23, 1954 M. E. ANDERSEN 2,695,203

PILLOW BLOCK Filed June 12' 1951 ATTORNEYS the upstanding plates United States Patent O PILLOW BLOCK Mark E. Andersen, Los Angeles, Calif., assignor to The Fafnir Bearing Company, New Britain, Conn., a corporation of Connecticut Application June 12, 1951, Serial No. 231,211 2 Claims. (Cl. 3t)8 72) My invention relates to a pillow block and more particularly to improved pillow block housing means.

It is an object of the invention to provide an improved pillow block which is easy to assemble, simple and inexpensive, quite rigid and effective in use and in general the object is to provide an improved two piece housing in a pillow block.

In the drawings which show, for illustrative purposes only, a preferred form of the invention:

Fig. l is a perspective view of an assembled pillow block illustrative of the invention;

Fig. 2 is a central sectional view taken substantially in the plane of the line 2 2 of Fig. l but illustrating bolts instead of rivets as securing means.

Fig. 3 is a perspective view of one of the housing plates of the pillow block.

Briey stated, the invention in its preferred form, includes a pair of housing plates each having an outwardly directed annular housing ange which flanges together form a housing for an antifriction bearing when the plates are secured together face to face. The two housing plates may be secured together by various means such as welding, stitching, riveting as in Fig. l and by bolting as in Fig. 2. Each upstanding housing plate has a rightangularly extending base plate formed integrally therewith and extending to both sides of the plane of the housing plate. Each foot or base plate or flange is preferably provided with an opening for a securing bolt and the axis of such hole is preferably in the plane of the upstanding housing plates.

In the specific form illustrated the pillow block includes a pair of upstanding housing plates 5 6 and right angularly extending base plate means 7 8. The base plates are longer than the widths of the upstanding housing plates and the flanges or foot portions 7 8 extend substantially beyond one end of the corresponding housing plates, for example, the end 9 of the ange portion 7 on the housing plate 5 extends transversely of the upstanding plate 5 and to both sides of the plane thereof. The base plate 7, for example, terminates at 10 substantially at the corresponding end or edge of its plate 5 while the other end 9 extends considerably beyond the adjacent edges of the plate 5 and extends as shown transversely at both sides of the upstanding plate 5 and preferably to about the same distance. The upstanding housing plates 5 6 and the corresponding base or foot anges are preferably duplicates of each other so as to make for interchangeable manufacture and the description given for the plate 5 and its foot ange applies equally to the plate 6 and its ilange.

The plates 5 6 are secured together by any known means, for example by means of rivets 11 11 shown in Fig. l or bolts 11 as shown in Fig. 2 and the pillow block is preferably held on its support by bolts or other fastening members passing through apertures 12 12 in the respective side portions of the base flanges 7 8. Since each side base ange at one end extends laterally to both sides of each of the upstanding plates 5 6, the holes 12 are preferably placed symmetrically and the axes are preferably logated substantially in the plane of 6. The housing plates 5 6 are arranged for housing a 2,695,203 Patented Nov. 23, 1954 bearing and as illustrated each plate has an outwardly extending annular flange 13 which preferably is of substantially spherical contour at the inside so that the two flanges on the abutting plates 5 6 together form a bearing housing having a generally spherical contour to fit the spherical surface of the outer ring 14 of an antifriction bearing such as the ball bearing shown. The outer bearing ring 14 is preferably of generally spherical form so as to permit self-alignment and proper fitting within the seat formed by the annular flanges 13 13. The bearing illustrated includes the outer ring 14, along inner ring 15 and interposed antifriction bearing members such as the balls 16. The bearing may be sealed at each side by means of labyrinth seals 17.

In the form shown the inner ring at one end is provided with an eccentric cam surface 18 to t a corresponding cam surface on a locking ring 19 whereby upon slight relative rotation between the inner ring 15 and the locking ring 19 both rings will be securely locked to the shaft 20 passing through the inner ring.

The housing parts are formed of pressed steel or the like and are preferably duplicates of each other. The complete pillow block is very light, yet sturdy and serviceable in use. No machining operations on the housing plates are necessary and the necessary holes may be drilled or punched. Thus an inexpensive pillow block has been produced which will provide the advantages of a self-aligning antifriction bearing pillow block at very moderate cost. The means for securing the pillow block to its support may be screws or bolts which pass through the holes 12 in the base flanges. These holes are preferably in the same general plane as the upstanding plates 5 6 so the pillow block will be symmetrically supported and will be well balanced.

While the invention has been described in considerable detail, and a preferred form shown, it is to be understood thatvarious changes may be made within the scope of thi nvention as defined in the appended claims.

c aim:

beyond its respective plate at one edge and extending to both. sides of same as the housing.

References Cited in the tile of this patent UNITED STATES PATENTS Name Carter Number .g 1,606,747 2,194,328 2,287,182

FOREIGN PATENTS Country Great Britain ..'.v-..

Number Date Y 379,832 Apr. 14, 193.2 

